Four New Isoprenoid-substituted Dibenzoylmethane Derivatives, Glyineflanins A, B, C, and D from the Roots of Glycyrrhiza inflata

Four new isoprenoid-substituted dibenzoylmethane derivatives, glyinflanins A (1), B (2), C (3), and D (4) were isolated from the roots of Glycyrrhiza infalta. The structures of glyinflanins A-D were elucidated by spectroscopic and chemical methods